These entries are queried from radb.net using whois, you can try my project getting these.
:AS262453 route: 170.247.100.0/22 descr: PROXY FOR OPENX CUSTOMER origin: AS262453 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20190529 remarks: Wed May 29 17:38:46 2019 source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.247.100.0/23 descr: Cliente do Cliente Everest Ridge origin: AS262453 remarks: AS PATH 267613 267056 266167 53185 262453 remarks: Processamento corretivo v2 notify: coreweb_tier2 [at] eletronet.com notify: filtrosbgpoperadoras [at] eletronet.com mnt-by: MAINT-AS267613 changed: guilherme.cecilio [at] eletronet.com 20190531 #21:09:09Z source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.247.102.0/23 descr: Cliente do Cliente Everest Ridge origin: AS262453 remarks: AS PATH 267613 267056 266167 53185 262453 remarks: Processamento corretivo v2 notify: coreweb_tier2 [at] eletronet.com notify: filtrosbgpoperadoras [at] eletronet.com mnt-by: MAINT-AS267613 changed: guilherme.cecilio [at] eletronet.com 20190531 #21:09:09Z source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.247.103.0/24 descr: CLARO S.A. Customer origin: AS262453 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230927 source: RADB last-modified: 2023-11-13T16:18:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.52.240.0/22 descr: Varanda Comunicacoes Ltda ME origin: AS262453 mnt-by: MAINT-AS262453 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20120714 #11:49:15(BRT) source: TC last-modified: 2021-05-05T02:07:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.52.240.0/22 descr: This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc [at] commcorp.com.br if you have any questions regarding this object. origin: AS262453 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20200721 source: RADB last-modified: 2023-11-13T16:01:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7b0::/32 descr: Cemig origin: AS262453 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20170203 #13:53:20Z source: RADB last-modified: 2023-11-13T15:50:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source